--- a/src/hugin1/hugin/xrc/data/help_en_EN/Enfuse.html
+++ b/src/hugin1/hugin/xrc/data/help_en_EN/Enfuse.html
@@ -140,7 +140,7 @@
 </p>
 <pre>-m megabytes
 </pre>
-<p>Set the size of Enfuse's image cache. This is the amount of memory Enfuse will use for storing image data before swapping to disk. The default is 1 GiB.
+<p>Set the size of Enfuse's image cache. This is the amount of RAM (in megabytes) Enfuse will use for storing image data before swapping to disk. The default is 1024 MB.
 </p>
 <a name="Fusion_options" id="Fusion_options"></a><h3> <span class="mw-headline"> Fusion options </span></h3>
 <p><code>W</code> is a number between 0 (no weight) and 1 (full weight)